Out of all the innovations we have achieved. Batteries are those who evolved veeery slow. We built nukes, internet, smarthphones, tablets, all kind of shit in cybernetics, robots, military tech. Batteries are still the same shit we used 5or10 years ago. Thinking at AR flight drone with a 5min flight autonomy. Wonder when are we gonna get? those batteries from Terminator 3? small but so powerful it can power a robot for years!!

For traditional LiCoO2 (like shown in this video) it’s 3-5 years depending on usage profile, for LiMn version of Li-Ion (usually found in power tool batteries, and in some hybrid electric vehicles) it’s 5-7 years (also depends on usage profile),? for LiFePO4 it’s 10+ years (but, as a disadvantage, a LiFePO4 battery that stores same amount of energy as LiCoO2 one, weights ~2 times more).

Yeah lithium is a bit special when it comes to metals technology. Well? that’s a good trade to be in, you will have all the tools and materials to start your own projects and experiments lol. Jesus started out as a carpenter you know cheers, and good luck with your electrical business.